Class 1 Exam > Class 1 Questions > Complete the series: 2, 5, 9, _________, 20, ...
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Complete the series: 2, 5, 9, _________, 20, 27
- a)16
- b)18
- c)24
- d)14
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct...
Pattern:
To find the missing number in the series, we need to identify the pattern or rule that governs the sequence of numbers. Let's analyze the given series: 2, 5, 9, _________, 20, 27.
Step 1: Difference between consecutive numbers:
The first thing we can observe is that the difference between consecutive numbers is increasing.
- The difference between 5 and 2 is 3.
- The difference between 9 and 5 is 4.
- The difference between 20 and 9 is 11.
Step 2: Differences of differences:
Now, let's calculate the differences between the differences of consecutive numbers:
- The difference between 4 and 3 is 1.
- The difference between 11 and 4 is 7.
Step 3: Identifying the pattern:
From step 2, we can observe that the differences of differences are not constant. However, we can notice that the differences of differences are increasing by 6.
Step 4: Applying the pattern:
Now, let's apply the pattern to find the missing number.
- The difference between 7 and 1 is 6.
- Adding 6 to the last difference of 7, we get 13.
- Adding 13 to the last number 9, we get 22.
Answer:
Therefore, the missing number in the series is 22.
To find the missing number in the series, we need to identify the pattern or rule that governs the sequence of numbers. Let's analyze the given series: 2, 5, 9, _________, 20, 27.
Step 1: Difference between consecutive numbers:
The first thing we can observe is that the difference between consecutive numbers is increasing.
- The difference between 5 and 2 is 3.
- The difference between 9 and 5 is 4.
- The difference between 20 and 9 is 11.
Step 2: Differences of differences:
Now, let's calculate the differences between the differences of consecutive numbers:
- The difference between 4 and 3 is 1.
- The difference between 11 and 4 is 7.
Step 3: Identifying the pattern:
From step 2, we can observe that the differences of differences are not constant. However, we can notice that the differences of differences are increasing by 6.
Step 4: Applying the pattern:
Now, let's apply the pattern to find the missing number.
- The difference between 7 and 1 is 6.
- Adding 6 to the last difference of 7, we get 13.
- Adding 13 to the last number 9, we get 22.
Answer:
Therefore, the missing number in the series is 22.
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Community Answer
Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct...
The pattern here is adding consecutive odd numbers: 3, 4, 5, and so on. Starting with 2, add 3 to get 5, add 4 to get 9, add 5 to get 14. Therefore, the missing term is 14.
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Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct answer is option 'D'. Can you explain this answer? for Class 1 2025 is part of Class 1 preparation. The Question and answers have been prepared according to the Class 1 exam syllabus. Information about Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 1 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct answer is option 'D'. Can you explain this answer?.
Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct answer is option 'D'. Can you explain this answer? for Class 1 2025 is part of Class 1 preparation. The Question and answers have been prepared according to the Class 1 exam syllabus. Information about Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 1 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Complete the series: 2, 5, 9, _________, 20, 27a)16b)18c)24d)14Correct answer is option 'D'. Can you explain this answer?.
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